Improvement in submerged pumps



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,Statali wwe A gde mvJAr/HN r. BROWN,` or woBUnN, MASSACHUSETTS.

Letters Patent No. 85,063, dati-ell December- 22, 1868.

IMPROVEMENT IN SBMERGED PUMPS.

The Schedule referred to in these Letters Patent and making pari of the s ame.

To all whom it may concern v'Be it known that I, BENJAMIN F. BROwN,'of Woburn, in the county of Middlesex, and State of Massachusetts, have invented certain Improvements in Submerged Pumps; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, making-part of this specification.

Figure 1 is -a sectional perspective view of the body of the pump, showing piston, cylinders, valves, airehamber, and eduction-pipe.

Figure 2 shows one method of working the pistonrod.

Figure 3 shows an attachment, which may be applied to my pump, when it is desired to use the same without being submerged. 1

Figure 4 shows the ordinary method I employ to work the piston.

Figure 5 shows the manner in which I adjust the brake or handle, when it is desired to have the Same worked horizontally instead of perpendicularly.

The object oi' my invention is to produce at once a double-action submerged force-pun'ip, whichl shall -be durable, non-freezing, and not liable to get out off' order, while there is no packing to be used in its construction.

In the drawings, A. is the frame-work or body of the pump.

` sfactory operation ofthe pump.

When my pump is used as a submerged pump, the part below the. line p 11 is removed.

H is a lever or brake, to which is applied the motive-power for working the pump.

This lever is fixed into socket M, belonging to arm mf, which has a cogged end, as shown.

These cogs work upon cogs on the holder P directly, or, when greater speed is required, upon fulcrum V, with cogged shoulder t, and shoulder t works upon holder I.

When it is desirable to have the brake H horizontal, I use the knee-socket K in socket M.

The piston-rod l) is fastened to holder P by setserew or pin v v In thc construction of my pump, there is no necessity for nice packing of thc piston or water-tight valves; in fact, I use no packing anywhere upon th'e pump, but the whole is made of any suitable metal, giving an ordinary amount of care to thenish of the castings.

in the liquid to be pumped, with the part below line p p removed. 'lhe liquid runs in at aperture F and g, when the piston B is raised, causing a vacuum inA the cylinder Q, below the piston-head. The liquid forces 11p-valve n, and lills cylinder Q, as Well as cylinder Q',

through aperture g and polt-S, for the pressure of the liquid, to ll the vacuum below piston B, raises valve kc,a1,ld,as this valve is constructed withprojections 2 2, the liquid is allowed to pass between 2 2, and ll cyl-4 inder Q, as well as Qr l New, when the piston vB is forced down, it forces the liquid bclow`ittln-ough the port S', into and up the cylinder'Q', closing, of course, valve e, while the downward movement of piston B creates a vacuum over it, and the liquid flows in at f to ll the vacuum thus caused, passing through port S, but not opening valve c, for the pressure of water over it keeps valve a down until the movement of piston B is reversed.

The downward movement of the piston opens valve d by the pressure giventhe liquid, and the 'upward movement of piston opens valve a, closing valve b.

These movements continued,i`1ll the space above valves a and d, while the pressure of liquid, continually seeking au outlet, together with the pressure from airchamber C, closes alternately valves c and d, as the piston B is moved up and down, when' the liquid is forced to iiow up through eduction-pipe E, and out at v o.- (The valve E is superliuons, and perfoivns no action in the operation of my pump.)

I thus secure a constant low from E,while I do not.

raise the pipe at every stroke of the lever.

The valve a is; s o constructed asto allow it to open freely without closing portv S.

When it is desired to use my pump .as an" ordinary pump, I can do so by attaching the arrangement shown .n iig. 3 to aperture F.

This attachment is submerged, the liquid lowing through s into pipe N. When a vacuum is created in thel cylinder Q by the movement -of the piston B, the pressure on the suifaee of the liquid forces it up pipe N, so that, when the vacuum is reduced, the weight oi' water in the pipe N closes valve as, until the next vacuum is produced, and lthe liquid forced intocylinder Q', when theA pipe N-iills again through z',

I am aware of the existence of double-acting forcepumps, and ci' double-acting submerged pumps, and I do not claim having .invented any new principle inthe operation of pumps; but a new arrangement of known principles, by which I can more conveniently and'easil)1 produce' known results, and I am not aware of any pump arranged and operated in like manner to my invention.V

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Having thus fully described my invention, The above invention was made by me, January 31, What I claim as my improvement, amd desire to se- 1868. l eure by Letters Patent, is- In testimony whereof, I have signed my name to 1. The valves a b c d, constructed as deseribed,vin this specification', in the presence of two subscribing combina-tion withl openings F and g, ports S and S', cyl- Witnesses. Y

inders Q, Q', and Q", piston B, piston-rod D, air-eham- Y BENJAllIIN F. BROWN. ber C, eduction-pipe E, oog-faced -erm m, eogged holder Witnesses:

P, sockets K and M, and lever H, all arranged and' op- GARROLL D. WRIGHT,

erating, relatively to each other, substantially as and JANE E. WRIGHT.

for the purpose herein described. 

